nodejs文件上传组件multer使用

var express = require('express')
var rp = require('request-promise')

var fs = require("fs");

var app = express()

app.get('/send', function(req, res, next) {
    var options = {
        method: 'POST',
        uri: 'http://127.0.0.1:3000/profile',
        formData: {
            avatar: [fs.createReadStream("./ad.jpg"), fs.createReadStream("./222.png")]
        },
        headers: {
            // 'content-type': 'application/x-www-form-urlencoded'
        }
    };

    rp(options)
        .then(function(body) {
            // POST succeeded... 
            res.send(body);
        })
        .catch(function(err) {
            // POST failed... 
            res.send(err);
        });
});


app.listen(3001);

var express = require('express')
var multer = require('multer')
var _ = require("lodash");

var app = express()
var storage = multer.diskStorage({
    //设置上传后文件路径，uploads文件夹会自动创建。
    destination: function(req, file, cb) {
        cb(null, './uploads')
    },
    //给上传文件重命名，获取添加后缀名
    filename: function(req, file, cb) {
        var fileFormat = (file.originalname).split(".");
        cb(null, file.fieldname + '-' + Date.now() + "." + fileFormat[fileFormat.length - 1]);
    }
});

var fileFilter = function(req, file, cb) {
        cb(null, false);   //这里设置为false则直接拒绝上传了，实际使用应为true
    }
    //添加配置文件到muler对象。
var upload = multer({
    storage: storage,
    fileFilter: fileFilter
});


var up = upload.array('avatar');

app.post('/profile', function(req, res, next) {
    // req.file 是 `avatar` 文件的信息\
    up(req, res, function(err) {
        if (err) {
            // An error occurred when uploading 
            res.send(err);
            return
        }
        res.send("upload success");
        // Everything went fine 
    })
});


app.post('/profile2', function(req, res, next) {
    // req.file 是 `avatar` 文件的信息
    console.log(req.body);
    res.json({ "succ": true, "msg": "请求成功" });
});

app.listen(3000);